Man drives off with woman's son on I-94 in Harrison Twp.

Police are looking for a Detroit man who assaulted his girlfriend and left her on the side of the road on Interstate 94 in Macomb County before driving off with her 8-year-old son on Sunday afternoon.

Macomb County Sheriff’s deputies were called to I-94 near Shook Road in Harrison Township about 3:30 p.m. after the woman called 911. She told police the Detroit man assaulted her and kicked her out of his Ford Taurus and drove off heading west toward Wayne County.

The woman told police her son was in the vehicle, but she did not believe the man would harm him. Emergency medical technicians from the Harrison Township Fire Department were called to treat her at the scene for minor injuries.

Macomb authorities were working with Detroit police to look for the man and check on the safety of the boy.